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3 years ago

Find the area of a circle with a circumference of 81.68cm

Mathematics

1 answer:

Whitepunk [10]3 years ago

5 0

Answer:

A= 20959.52 cm

Step-by-step explanation:

Formula: A= π x r^2

A= π x 81.68^2

A= 20959.52

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How do you do inequalities

fgiga [73]

So some quick tips for inequalities:
**What you do to one side you HAVE TO do it to the other 2**
**If you ever divide a negative number past the inequality signs, the signs FLIP!!**
(e.g. 2>-5x>25)
-2/5 <x < -5

I hope that this has helped!

8 0

3 years ago

Find the simple interest and amount when principal = Rs. 6000, rate = 6% per annum and time = 4 years

Alinara [238K]

Given:

Principal = Rs. 6000

Rate of simple interest = 6% per annum.

Time = 4 years

To find:

The simple interest and amount.

Solution:

Formula for simple interest:

$I=\dfrac{P\times r\times t}{100}$

Where, P is principal, r is the rate of interest and t is the number of years.

Putting P=6000, r=6 and t=4, we get

$I=\dfrac{6000\times 6\times 4}{100}$

$I=60\times 6\times 4$

$I=1440$

Now,

$Amount=Principal+Interest$

$Amount=6000+1440$

$Amount=7440$

Therefore, the simple interest is Rs. 7440 and the amount is Rs 7440.

7 0

3 years ago

Customers per day: 98, 87, 93, 82, 101, 99, 97, 97, 91<br> Find the mean to the nearest tenth:

notsponge [240]

<h2>Mean = 93.3 (to nearest tenth).</h2><h2 /><h2>Mean = 93.3 (to nearest tenth).Median = 97.</h2><h2 /><h2>Mean = 93.3 (to nearest tenth).Median = 97.Mode = 97.</h2><h2 /><h2>Mean = 93.3 (to nearest tenth).Median = 97.Mode = 97.Step-by-step explanation:</h2><h2 /><h2>Mean = 93.3 (to nearest tenth).Median = 97.Mode = 97.Step-by-step explanation:Arrange the data in ascending order:</h2><h2 /><h2>Mean = 93.3 (to nearest tenth).Median = 97.Mode = 97.Step-by-step explanation:Arrange the data in ascending order:79 82 87 91 93 97 97 98 99 101 102</h2><h2 /><h2>Mean = 93.3 (to nearest tenth).Median = 97.Mode = 97.Step-by-step explanation:Arrange the data in ascending order:79 82 87 91 93 97 97 98 99 101 102There are 11 numbers.</h2><h2 /><h2>Mean = 93.3 (to nearest tenth).Median = 97.Mode = 97.Step-by-step explanation:Arrange the data in ascending order:79 82 87 91 93 97 97 98 99 101 102There are 11 numbers.The Median is the center value (= the 6th</h2><h2>Mean = 93.3 (to nearest tenth).Median = 97.Mode = 97.Step-by-step explanation:Arrange the data in ascending order:79 82 87 91 93 97 97 98 99 101 102There are 11 numbers.The Median is the center value (= the 6thnumber) = 97.</h2><h2 /><h2>Mean = 93.3 (to nearest tenth).Median = 97.Mode = 97.Step-by-step explanation:Arrange the data in ascending order:79 82 87 91 93 97 97 98 99 101 102There are 11 numbers.The Median is the center value (= the 6thnumber) = 97.The mode = highest occurring value = 97.</h2><h2 /><h2>Mean = 93.3 (to nearest tenth).Median = 97.Mode = 97.Step-by-step explanation:Arrange the data in ascending order:79 82 87 91 93 97 97 98 99 101 102There are 11 numbers.The Median is the center value (= the 6thnumber) = 97.The mode = highest occurring value = 97.The mean = sum / 11 = 93.3.</h2>

7 0

3 years ago

Read 2 more answers

In ΔBCD, the measure of ∠D=90°, BD = 13, DC = 84, and CB = 85. What is the value of the cosine of ∠C to the nearest hundredth?

Morgarella [4.7K]

Answer: 0.99

Step-by-step explanation: sin 90 Divided by 85 = sin x divided by 13

sin x =13x sin 90 divided by 85

sin x = 13divided by 85

sin x = .152941176

arc sine of .152941176= 8.79741071 degrees

cos 8.79741071 = .988235294

.99

8 0

3 years ago

Please help me idk this

Ray Of Light [21]

To solve this problem you must apply the proccedure shown below:

1- You have the following information given in the problem above:

- The jug helds 16 cups of milk.
- Isaac drank 1 7/8 cups and his brother drank 1 1/2 cups.

2- Keeping this on mind, you have:

1 7/8=15/8
1 1/2=3/2

=16 cups-15/8 cups-3/2 cups
=101/8 cups

The answer is: 101/8 cups

4 0

3 years ago